How Do I Say I Don't Want To See Him Again?

I went on a date yesterday with an older guy. I'm 25. He's 38. He's extremely successful. I met him online and thought we were a good match. We seemed to like the same things etc. We went out for a drink yesterday and I thought he was cool. But after our drink, we went up to a rooftop in Downtown to check out the view and he hugged me and he kissed me French style, which I was a little uncomfortable with. I don't ever kiss on the first date. I ended up being okay with it bc I really liked his personality. But then He started getting touchy grabby. He told me I was very sexy, that he felt super attracted to me, that he felt like doing things with me. He ran his hands over my breasts and even under my pants!!! I immediately made it clear that I wasn't comfortable with that and I moved his hands away. But he sort of laughed it off and kept kissing me. He asked me if I could see him again and I said yes bc I felt very vulnerable in that moment. Here I was alone with him, and he was getting very grabby and I was afraid he'd get upset and idk him, I met him online, so I was afraid of how he might react. Anyway he texted me this morning saying he can't wait to see me soon. And I don't want to go out with him again. Yesterday I agreed I would tho. How do I tell him I don't want to go out again???  I'm honestly sad bc I'm not on the dating site to hook up at all and my profile makes it very clear. I've only been intimate with 1 person my entire life and I felt very pressured last night. I also dressed very decent by the way. Just in case some of you guys think I "asked" for it.